Sunlight in the Roots (IMAGE) Max Planck Institute for Chemical Ecology Caption Photoreceptors in the roots are activated by light which is transmitted from the shoot to the underground roots through the stem. Credit Rakesh Santhanam, Angela Overmeyer / Max Planck Institute for Chemical Ecology. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.